Siphon flush-valve.



P. F. McCAFFREY.

SIPHON FLUSH VALVE.

APPLICATION FILIED sPT.25. 1911.

1,302,820. Patented May 6, 19i9.

J\' V I f lnQentor %W %M" by Attorneys P. 'F. McCAFFREY.

. SIPHON FLUSH VALVE.

. APPLICATION FILED SEPT: 25, I911. 1,302,820, Patented May 6, 1919; 3 SHEET&-SHEET 2 ylnventor r I 1 Attorneys Witnesses i !T m g M E H BUS m3 Du M P zya UNITED STATES PATENT OFFICE.

PETER F. McoAEEnEY, or sroxnnnwnsnme'ron.

SIPI-ION FLUSH-VALVE.

To all whom it may concern:

Beit known that I, PETER F. MCGAFFREY, a citizen of the United States, residing at Spokane, in the county of Spokane and State of Washington, have invented a new and useful Siphon Flush-Valve, of which the following is a specification.

The device forming the subject matter of this application is a flush tank, and the invention aims to provide novel means for starting the flow of water from the tank and for controlling the flow of water.

It is within the province of the disclosure to improve generally and to enhance the utility of devices of that type to which the present invention appertains.

With the above and other objects in view which will appear as the desoription proceeds, the invention resides in the combination and arrangement of partsand in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed can be made within the scope of what is claimed, without departing from the spirit of the invention.

In the accompanying drawings:

Figure 1 is a vertical section taken through a flush tank embodying the present invention parts appearing in elevation;

Flg. 2 is a perspective view showing the valve mechanism;

Fig. 3 is a vertical section taken through the valve mechanism disclosed in Fig. 2; j

Fig. 4 is a fragmental horizontal section illustrating one of the shaftsand attendant parts; and p Fig. 5 is a fragmental vertical section illustrating a modified form of the inven tion, parts appearing in elevation;

Fig. 6 is a vertical section taken through a' flush tank embodying a modification in the present invention, parts appearing in elevation; I k

Fig. 7 is a vertical section taken through the valve mechanism used in connection with that form of the invention which is delin- Fig. Sis a fragmental horizontal section showing the shaft and attendant parts, as used in Fig. 6. i p

The numeral 1 designates a flush tank.

Specification of Letters Patent.

Patented May 6, 1919.

Applicationfiled September 25, 1917. Serial No. 193,168.

The numeral 2 marks a siphon including an intake leg 3 and an outlet leg 4. The outlet leg 4 opens through the bottom of the flush tank 1. A water supply pipe 5 opens through the bottom of the flush tank 1 and carries at its upper end, a Valve casing 6 having a seat 7 in its interior. The casing 6 is supplied with a lateral tubular extension 8 connected with a depending outlet pipe 9 discharging into the tank 1. A connecting pipe 10 leads from the side of the extension 8 to the crown of the siphon 2 and discharges into the outletleg 4. A hollow valve 11 isjournaled in the extension 8 and has a side port 51 adapted to be brought into registration withthe pipes 9 and 10. A cap 12 is secured to the outer end of the valve 11 and'overhangs the outer end of the extension 8,the cap being provided with a finger 14 adapted to move between and contact with radial projections 15 and 16 on the extension 8 of the casing 6. The cap 12 has a radial a11n17. A rod 18is pivoted to the arm 17 and is pivotedto an arm 19' carried bya sleeve 23 having an arm 22. The sleeve 23 is securedloy a set screw 24, for adjustment,

to a shaft '20 journaled in the walls of the tank 1. The shaft 20 is provided with a handle 21 located exteriorly of the tank 1 andconstituting a means whereby the shaft may be rotated. A suspension element, such as a rod 25, is pivoted at its upper end to the arm 22,the lower end of the member 25 being pivoted to a-rod 26 extended across I a bucket 27. The numeral 28 denotes an arm place by a set screw 3 1.

, The numeral 32 denotes a float connected to one end of a rod 33 A bar 34 is provided, the bar 34 and the rod 23 being provided with toothed heads 35 held in contact adjustably by means of a bolt and wing nut 36.

The bar 34is fulcrurned at 37 in a fork 38 constituting a part of the casing6, the parts 34 and 33 constituting a float lever. The upper end of a link 39 is pivoted to one end of the bar 34,the lower end of the link being pivoted to a lever '40 mounted to move within the fork 38 and fulcrumed at 41 on a bracket 42 constituting a part of the casing 6. A valve 43 cooperates with the seat 7 and moves vertically in the casing 6, the valve having an opening 14 through which the lever 10 passes, :so that the valve can be actuated by the lever.

When it is desired to flush the tank 1, the handle 21 is swung in a clockwise direction, thereby rotating the shaft, 20. When the shaft 20 is rotated, the arm 19 moves the rod 18 endwise, and rotation is imparted to the alve 11 by way of the cap 12 and the arm 17, the finger 14: engaging the projection 16 on the extension 8 of the casing 65. When the valve 11 is rotated as aforesaid, the .port 51 inthe valve will be brought into registration with the pipe 10.

When the shaft 20 is :rotated as above described by means .of the handle 21, the fork 29 on the arm 28 depresses the float lever 3384, the same swinging on its fulcrum 37. The link 39 imparts movement to the lever and the latter raises the valve 43 off the seat 7. Water traversing the supply pipe 5 enters the valve casing 6 .and the valve 11, the water passing out of the valve 11 :by way of the port 51 into the pipe 10. From .the pipe 10 the water flows downwardly into theoutlet leg 1 of the siphon 22. This operation reduces the pressure in the crown of the siphon below atmospheric pressure, and the atmospheric pressure on the water outside of the'siphon causes the water to start to flow downwardly throughwthe leg 4:, water being siphoned out-of the tank 1-in this way.

When the shaft 20 is rotatedb-y means .of the 'handle 21 as aforesaid, the arm 22'121I1Cl, consequently,'the bucket 27 are elevated. It is to be observed that so long as the-bucket 27 :is submerged in .thewater .in-the tank, the bucket has no appreciable weight. -VVl1en, however the level of the water in the tank falls below the bucket 27, then the water in the bucket gives an :added incre- 1 ment of weight thereto.

When the water, having 'been siphoned out of-the tank 1, has fallen sufficiently, and when the float 32, following'the water, has moved downwardly to .a predetermined point, the-rod '33 no longer bears on the fork 29 of the arm 28.. Then the shaft .20 .i-s'rotated bylthe weight of the bucket-27 .and' its contents, the handle "21,;th'e arm 22 the arm 19-and the arm..28 being restored to positions .of Fig: 1. When this .openationtakes p'lace,-,the rod 18 rotates thevalve11by1vay of the'cap 12 and :the. arm 17, until .the port 51 in the valve is out of registration with the pipe 10 and is {registration with the pipe .9. Water fiowm-g-upwardly through pip 5, the casing 6 and :the-valve 11 is discharged through the pipe '9 into .the .tank 1 and fills the tank. As the wateraaccumulates in the tank, the float 31 rises, .tiltin g the lever 33-3 1 and closingva'lve 4:3 on the seat '7,

The supply of water to the tank through the pipe 5, the casing 6, the valve 11, the port 51 and the pipe 9 thus is cut off.

outlet leg 47 assembled with the bottom of the tank, and an intake leg, in the form of a cap 48 inverted over the outlet leg 1'7. A pipe 49 enters the top of the cap or intake le 48 and discharges into the outlet leg 47 o" the siphon. The pipe 49 corresponds to the nine 10 mentioned in connection with the preferred form of the invention. A vent pipe 50 may open through the top of the cap 18, the pipe 50 terminating at its lower end, adjacent to the bottom of .the tank The function of the pipe 50 is to prevent the water from being siphoned out of the tank 45 beyond a level represented by the lower end of the pipe 50. The pipe 50, if desired, may be omitted. It will be obvious that the structure shown in Fig. 5 contemplates merely a change in the form of the siphon, the general operationof the device being unafiected.

In Figs. 6, 7 and 8, a modified form of the invention is shown. In the said fig ures, parts hereinbefore described have been designated by numerals previously used, with thesuflix a. The modification in this form of the invention consists in omitting the extension 8 on the valve casing 6, the pipe 10, the rotary valve 11, the actuating 100 rod 18 and the arm 19 -on the shaft 20.

In the form of the invention shown in Figs. 6 .to 8 both inclusive, the handle 21 is swung in a clockwise direction, rotating the shaft 20, The fork .29 on the arm 28 engages the .float lever 33 -84 and tilts the same on its fulcrum 37*, thereby depressing the float 32, elevating the valve 43 off the seat 7*, and elevating .the bucket :27. The water flows from the pipe 5 through the pipe 9 from the casing 6 and, rising in the tank 1, starts the siphon 2 In this connection it is to be observed that the form shown in Figs. 6, 7 and 8 is adapted to be used especially when there is a high pressure in the main whichsupplies the pipe 5. When the water in the tank 1 'falls below the level of the bucket 2'? after the latter has been raised, the weight of the water in the bucket 27 becomes effective to restore .the shaft 20 and its parts to the positions shown in Fig. 6.

Having thus described'theinvention, what is claimed is '1. In a device of the class described, a flush tank; a siphon communicating with the tank and discharging therefrom; a source of water supply for .thetank having an outlet discharging into the tank; a valve 65 b ,,mea11s-.of {the link 39 andthe lever- .10. .controlling'said source; a floatoperatively connected with the valve; a conduit discharging from said source into the siphon adjacent its crown; a single valve controlling the flow of water from the source into the outlet and into the conduit; and means under the control of an operator and assembled with the last specified valve and at times under the control of the float for actuating the said valve to direct the water from the source into the outlet and into the conduit at difi'erent times.

2. In adevice of the class described, a flush tank; a siphon communicating with the tank and discharging therefrom; a source of Water supply for the tank having an outlet discharging into the tank; a valve controlling said source; a float operatively connected with the valve; a conduit discharging from said source into the siphon adja cent its crown; a second valve controlling the flow of water from the source into the outlet and into the conduit; a rocking structure movable from an initial position by an operator and including means for depressing the float to actuate the first specified valve; a bucket assembled with the rocking structure for returning the same to said initial position after the float has descended out of engagement with the means for depressing the float; and means for operatively connecting the rocking structure with the second valve.

3. In a device of the class described a flush tank; a siphon communicating with the tank and discharging therefrom; a source of water supply for the tank having an outlet discharging into the tank; a valve con trolling said source; a float operatively connected with the valve; a rocking structure movable from an initial position by an operator and including means for depressing the float thereby to open the valve; and a bucket assembled with the rocking structure for returning the same to said initial osition after the float has descended out 0 engagement with the means for depressing the float and after the level of the water in the tank has fallen below the level of the bucket.

In testimony that I claim the foregoing as my own, I have hereto aflixed my signature in the presence of two witnesses.

PETER F. MCCAFFREY.

Witnesses:

BESSIE WEIR, VIDA H. JnRenNsEN.

Copies of this patent may be obtained for five cents each, by addressing the commissioner of ratentl, Washington, D. G." 

